| /* |
| * Copyright (c) 2002-2003, Intel Corporation. All rights reserved. |
| * Created by: salwan.searty REMOVE-THIS AT intel DOT com |
| * This file is licensed under the GPL license. For the full content |
| * of this license, see the COPYING file at the top level of this |
| * source tree. |
| |
| This program tests the assertion that the lowest pending signal will be |
| selected for delivery if there are any multiple pending signals in the |
| range SIGRTMIN to SIGRTMAX. |
| |
| Steps: |
| - Register for myhandler to be called when any signal between SIGRTMIN |
| and SIGRTMAX is generated, and make |
| sure SA_SIGINFO is set. |
| - Also, make sure that all of these signals are added to the handler's |
| signal mask. |
| - Initially block all of these signals from the process. |
| - Raise all of these signals using sigqueue. |
| - Unblock all of these queued signals simultaneously using sigprocmask. |
| - Verify that the signals are delivered in order from smallest to |
| biggest. |
| */ |
| |
| #define _XOPEN_SOURCE 600 |
| #define _XOPEN_REALTIME 1 |
| |
| #include <signal.h> |
| #include <stdio.h> |
| #include <unistd.h> |
| #include <stdlib.h> |
| #include <errno.h> |
| #include "posixtest.h" |
| |
| int last_signal = 0; |
| int test_failed = 0; |
| |
| void myhandler(int signo, siginfo_t * info, void *context) |
| { |
| printf("%d, ", signo); |
| if (last_signal >= signo) { |
| test_failed = 1; |
| } |
| } |
| |
| int main(void) |
| { |
| int pid, rtsig; |
| union sigval value; |
| struct sigaction act; |
| sigset_t mask; |
| |
| act.sa_flags = SA_SIGINFO; |
| act.sa_sigaction = myhandler; |
| sigemptyset(&act.sa_mask); |
| |
| sigemptyset(&mask); |
| |
| for (rtsig = SIGRTMAX; rtsig >= SIGRTMIN; rtsig--) { |
| sigaddset(&act.sa_mask, rtsig); |
| sighold(rtsig); |
| sigaddset(&mask, rtsig); |
| } |
| |
| pid = getpid(); |
| value.sival_int = 5; /* 5 is just an arbitrary value */ |
| |
| for (rtsig = SIGRTMAX; rtsig >= SIGRTMIN; rtsig--) { |
| sigaction(rtsig, &act, 0); |
| if (sigqueue(pid, rtsig, value) != 0) { |
| printf |
| ("Test UNRESOLVED: call to sigqueue did not return success\n"); |
| return PTS_UNRESOLVED; |
| } |
| } |
| |
| sigprocmask(SIG_UNBLOCK, &mask, NULL); |
| printf("\n"); |
| |
| if (test_failed == 1) { |
| printf |
| ("Test FAILED: A pending signal was delivered even though a smaller one is still pending.\n"); |
| return PTS_FAIL; |
| } |
| |
| return PTS_PASS; |
| } |